"The traditional approach to space exploration has been to carry all the fuel you need, and to carry everybody back in case of emergency. But to prime the pump that will take us beyond, boldness is required: the first expeditionary team must travel to the Moon without the fuel to come back, and produce it there. It can be done in 7 years, and I intend to lead that expedition. There was a time when people did bold things to open new frontiers. We have collectively forgotten that. Now we are at a time when boldness is required again."
Explorer Bill Stone. March, 2007